-LRB- CNN -RRB- -- A previously unpublished collection of photographs from the wedding of John F. and Jacqueline Kennedy will be auctioned this month .

The negatives of the photographs were found in 1993 in the darkroom of Arthur Burges , a World War II veteran and freelance photographer who was hired as a backup photographer for the wedding , according to Bobby Livingston , an executive vice president at RR Auction .

`` They 're relatively scarce , '' Livingston said . `` To come across a photo archive like this of such a famous event , they 're a nice find . ''

The future first couple was married on September 12 , 1953 , at St. Mary 's Church in Newport , Rhode Island .

The event was also famously displayed in LIFE magazine with shots by photographer Lisa Larsen , according to Rachel Flor of the John F. Kennedy Presidential Library and Museum . The magazine called the wedding `` the most impressive the old society stronghold had seen in 30 years . ''

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Burges ' photos , or the `` outtakes , '' as the auction house refers to them , include shots of the couple exiting the church and cutting the wedding cake .

According to a press release from the Kennedy Museum , the wedding cake had five tiers and was accompanied by `` a luncheon of fruit cup , creamed chicken and ice cream sculpted to resemble roses . ''

Jacqueline Kennedy 's wedding dress , captured in Burges ' black and white stills , was made from 50 yards of ivory silk taffeta and took more than two months to make , according to the museum .

Livingston estimated the collection of 13 shots will sell for several thousand dollars . The photos are being auctioned online through October 15 .

50 years later , Jackie Kennedy 's pink suit locked away from view

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13 negatives from 1953 Kennedy wedding found in 1993

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They were taken by a back-up photographer

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They are being auctioned online , expected to bring several thousand dollars